/******************************************************
Transaction system global type definitions

(c) 1996 Innobase Oy

Created 3/26/1996 Heikki Tuuri
*******************************************************/

#ifndef trx0types_h
#define trx0types_h

#include "lock0types.h"
#include "ut0byte.h"

/* Memory objects */
typedef struct trx_struct trx_t;
typedef struct trx_sys_struct trx_sys_t;
typedef struct trx_doublewrite_struct trx_doublewrite_t;
typedef struct trx_sig_struct trx_sig_t;
typedef struct trx_rseg_struct trx_rseg_t;
typedef struct trx_undo_struct trx_undo_t;
typedef struct trx_undo_arr_struct trx_undo_arr_t;
typedef struct trx_undo_inf_struct trx_undo_inf_t;
typedef struct trx_purge_struct trx_purge_t;
typedef struct roll_node_struct roll_node_t;
typedef struct commit_node_struct commit_node_t;
typedef struct trx_named_savept_struct trx_named_savept_t;

/* Transaction savepoint */
typedef struct trx_savept_struct trx_savept_t;
struct trx_savept_struct
{
  dulint least_undo_no; /* least undo number to undo */
};

/* File objects */
typedef byte trx_sysf_t;
typedef byte trx_rsegf_t;
typedef byte trx_usegf_t;
typedef byte trx_ulogf_t;
typedef byte trx_upagef_t;

/* Undo log record */
typedef byte trx_undo_rec_t;

#endif
